The objective of this study was to compare body dissatisfaction among adolescents athletes and non-athletes. We evaluated 58 athletes and 61 non-athletes sex male, mean age 15 ± 2,12 and 16 ± 1,67 years, respectively. We applied the Body Shape Questionnaire (BSQ) to measure the dissatisfaction body. The body mass index (BMI) was calculated as the ratio of body mass (kg) divided by height (m) squared (BMI = body mass/height²). We used the SPSS 17.0 software for data analysis through descriptive statistics, Kolmogorov-Smirnov test, Pearson chi-square and ANCOVA. The results showed differences in BSQ scores and prevalence of body dissatisfaction among groups of athletes and non-athletes (p < 0.05). It was concluded that adolescent non-athletes are more dissatisfied with weight and body appearance, and have a higher prevalence of this phenomenon compared to athletes in soccer and swimming males.